.lunbo_wrap {
  position: relative;
  /*border: 1px solid firebrick;*/
  overflow: hidden;
  width: 100%; }

.pic_box {
  height: 100%;
  white-space: nowrap;
  font-size: 0;
  padding: 0; }

.pic_box li {
  position: relative;
  height: 100%;
  display: inline-block; }

.pic_box li img {
  width: 100%;
  display: block; }

.pannel {
  position: absolute;
  left: 0;
  width: 100%;
  bottom: 1%;
  text-align: center; }

.pannel li {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #b7b7b7;
  margin-right: 4px; }

#left_arrow,
#right_arrow {
  cursor: pointer;
  position: absolute;
  top: 50%;
  margin-top: -18px;
  display: block;
  width: 24px;
  height: 36px;
  line-height: 36px;
  text-align: center;
  font-size: 14px;
  color: #FFFFFF;
  background: #000;
  opacity: .3; }

#left_arrow:hover,
#right_arrow:hover {
  opacity: .5; }

#left_arrow {
  left: 0; }

#right_arrow {
  right: 0; }

.pannel .active {
  background: red;
  border-color: red; }
